It's the classic greek gift sac. Only works when black's pieces are deflected away from the defense of the king like in that example.

To be fair, I also missed g4 on move 19 and instead blitzed out the natural Qf3+, which still wins by force anyway.

Interesting game bruh. Michigan here. Math major. Checkers Too.

why you dont mate him in move 19 with the pawn on g4

nice mate bubba

hey thanks

That is one of the coolest forced mates that I have seen...amazing game